Basic greenhouse vegetables in Poland are grown in open soilless system in which an excess of nutrient solution leaking from area of root system is discharged into the ground or drains of greenhouses. Drainage water from the growing slabs is more concentrated than nutrient solution supplied for plants. The aim of research conducted in the years 2010 - 2012 was to determine the effect of drainage water from soilless cultivation of tomato and cucumber on the mineral content in shallow groundwater occurring in objects of cultivation and in their neighborhood. Water samples for chemical analyzes were collected at intervals of three weeks from the piezometers located in greenhouses and adjacent areas within 25 and 300 m from the object. . The results of chemical analyzes of water indicate an increase in the degree of pollution of the waters of mineral nutrients. Ground water directly under soilless cultivated plants were contaminated almost all mineral nutrients that are in media fertilizers. Groundwater in significant quantities from entering nitrogen, potassium, calcium and magnesium. Contamination of ground water in the cucumber crop was at a similar level as in tomato cultivation. Mineral content in the groundwater decreased with increasing distance from the objects ...
Purpose of this study was to examine plant growth, yield, and fruit quality responses of tomato cultivar "Delgado F1" grown in different soilless culture substrates, such as perlite, rock wool, and coconut fiber, under greenhouse conditions. Horizontal bag culture was used as a growing system. The yield, plant biomass, leaf, height, width, fruit taste, aroma, acidity, water-soluble solids content (TSS) and lycopene content were measured. According to the results, the best fruit quality was determined for the coconut fiber media, while the highest total yield was obtained for the perlite media. ...
